It doesn't work because it has particle emitters which use paths of non-existing models (units\nightelf\DruidOfTheTalon\FeatherPurple1.MDL and units\nightelf\DruidOfTheTalon\FeatherPurple.MDL).I changed them to default ones (SharedModels\FeatherPurple1.MDL and SharedModels\FeatherPurple.MDL), and it works now. Just to mention, this Druid lacks Spell Alternate animation(Casting Faerie Fire in bird form), because it wasn't added until the Frozen Throne. Also the provided texture of the "Raven" is unnecessary, since it is the same as the one in game.